We can find how many more days it will be until he gets all 3 newsletters by finding the least common multiple of 5, 8 and 10.
LCM(5, 8, 10)=40, so it will be 40 more days until he gets all three on the same day again.
Amal gets newsletters by e-mail. He gets one for math every 5 days, one for english every 10 days, and one for science every 8 days. If he got all three today, how many more days will it be until he gets all three newsletters on the same day again?
1 answer